Magnetic operating means for camera-shutters.



Patented Oct. 6, 1908 I IlllllllIlllllllllllllllllllllllllllnnllllllllllllllllllllllllllllllllll UNITED sTATns rn'rn oFnroE.

ARNOLD BARIELS, OF LOS ANGELES, CALIFORNIA, ASSIGN'OR OF ONE-HALF TO ROSA HUG,

OF LOS ANGELES, CALIFORNIA.

'MAGIQ'ETIC OPERATING MEANS FOR CAMERA- -SHUTTERS.

To all whom it may concern:

Be it known that LARNOLD BARTELS, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Magnetic Operating Means for Camera-Shutters, of which the following is a specification.

My invention relates to magnetic operating means which may be attached to a camera shutter and take the place of the ordinary air bulb for operating the same; and the object thereof is to provide means whereby the operator may stand away at a considerable distance and operate the camera shutter accurately. I accomplish this obj ect by means of the devicedescribed herein and illustrated in the accompanying drawings, in which s Figure 1'is an elevation of the frontboard of a camera equipped with my improved means for operating the shutter. \Fig. 2is a sectional view of the spring operated reel for the connecting cord.

Referring to the drawings, 5 designates the front board of acamera equipped with lens 6 and shutter mechanism 7, both of usual construction. ,On one of the shutter operating arms 8 an armature 9 is rigidly secured and adapted to be acted on by electro-magnet 10 secured to front board 5. On the front board and at one side of the lens is mounted a reel ll adapted to rotate in bearings 12 and carrying connecting cord '13 which, is attached at its outer end to a switch 14 pro- 1 vided with spring contacts 15. Reel 11 rotates on two studs 16 and 17, being actuated to wind up connecting cord 13 by a spiral spring 18 secured at one end to bearing 12, and at the other to the body of the reel.

Wire 19 connects with stud 16 and wire 20 connects with stud 17, both running through V cord 13 and connecting at their outer ends to spring contacts 15. One of bearings12 is connected by wlre 21to electro-magnet 10 while the other is connected by wire 22 to one side of battery 23 secured to front board 5. The other side of battery 23 is connected by wire 24 to electro-magnet 10.

When spring contacts 15 are forced'into engagement with each other a circuit is set up'trom battery 23 through wire 22, bearlngs 12, stud 17, wire 20, spring contacts 15, Wire 19, stud 16, bearings 12, wire 21, electro-magnet -10 and wire 24 back to battery Specification of Letters Patent. Application filed June 10, 1907. Serial No. 378,055.

Patented Oct. e, 1903.

23. Electro-magnet 10 is thus energized and attracts armature 9 to operate the shutter through operating arm 8 and as the shutter is operated in exactly the same manner as with the ordinary air bulb the action of the shutter itself is not afiected.

It will be observed that the operation of my mechanism is extremely simple and sure. The operator may stand at a considerable distance from the camera as a large amount of connecting cord 13 may be wound on reel 11 without afiecting the action of the mechanism in any way whatsoever. The cord may be made so small as to be invisible inthe ordinary camera picture and thus enable the operator to take a picture of himself without any evidence ofhis being connected witln the camera.

Having described my invention what I claim as new and desire to secure by Letters Patent is L 1. In a device of the class described, elec tro-magnetic shutter o crating means mounted on the front boar of the camera, a reel mounted on the front board, a connectin cord composed of two wires mounted on sai reel, means to electrically connect the two wires of said cord together, and a source of electrical energy connected in series with said electro-magnetic means and the wires of said connecting cord.

2. In a device of the class described, a shutter operating arm, an armature rigidly affixed to said arm, an'electro-magnet mounted on the front board ofthe camera and adapted to actuate said armature, a reel source of electrical energy connected in series with said electroemagnet and said connecting' cord. v p

3. In a device of the class described a camera having a front board with a shutter mounted thereon, an armature mounted on the shutter operating arm, an electro magnet mounted ,on the front board adjacent said armature, a reel revolubly mounted on the front board, spring means to rotate said reel, a connecting cord composed of two wires wound on saidreel, a switch inthe' outer end of said connecting cord, said switch being connected to said wlres, and a battery connected in series with said electro-magnet connected in series with said Wires aifd said 10 and said wires. r shutter operating means.

4. Adevice of the class described compris- In Witness that I claim the fore oing-I ingan electro-magnetic shutter 0 crating have hereunto subscribed my name t 's 31st 5 means mounted on the front boar of the day of May,.1907.

. camera, a reel mounted on the front board, a ARNOLD BARTELS. I pair of wires Wound on said reel, the outer; Witnesses:

ends of said wires adapted to be connected TBIMBLE EARKELEW,

together, and a source of electrical energy MYRTLE A. JONES. 

